VERIFIED · 2026 canonical · www.jaspecs.com

Milwaukee M12 FUEL 1/2 in. Hammer Drill/Driver

Model number
3404-20

The Milwaukee M12 FUEL 1/2 in. Hammer Drill/Driver is a compact 12V hammer drill made for drilling and fastening where size matters. It delivers up to 1,550 RPM, 400 in-lbs of torque, a 1/2 in. all-metal ratcheting chuck, and a hammer mode for light masonry work. At only 6 inches long and about 2.6 lbs, it is easier to carry and maneuver than larger full-size drills. It fits users who want strong subcompact performance for service work, punch lists, and everyday drilling tasks on the M12 platform.

identifiers stable · addressable
Model no.
3404-20
Brand
Milwaukee
Category
Hammer Drill
Canonical URL
/milwaukee/hammer-drill/3404-20-m12-fuel-1-2-hammer-drill-driver/
21 spec rows · each row is anchorable

§ Specifications

#specifications
Product Type
Hammer Drill/Driver
Voltage (V)
12
Cordless / Corded
Cordless
Power Source
Battery
Motor Type
POWERSTATE Brushless
Tool Only
Yes
Batteries Included
0
Charger Included
No
Piece Count
2
Length (in.)
6
Weight (lbs)
2.6
Battery Platform
M12 FUEL
Chuck Type
All Metal Ratcheting
Chuck Size (in.)
0.5
Max Speed (RPM)
1,550
Max Torque (in-lbs)
400
Clutch Settings
12
Speed Settings
2
Hammer Function
Yes
One Key Enabled
No
Warranty
5 Years (Charger), 2 Years (Battery)

§ What's Included

01 (1) M12 FUEL 1/2 in. Hammer Drill/Driver (3404-20)
02 (1) Belt Clip

§ Warranty

5 Years (Charger), 2 Years (Battery)

§ FAQ

Is this a bare tool or a full kit?

This 3404-20 listing is a bare tool. It does not include batteries or a charger.

Can an M12 hammer drill really handle masonry?

Yes, for lighter masonry drilling. It has a hammer mode that works well for brick, block, and smaller anchor jobs.

How compact is it compared with larger drills?

It is very compact at 6 inches long, which makes it easier to use in cabinets, mechanical rooms, and overhead positions.

What chuck does it use?

It uses a 1/2 inch all-metal ratcheting chuck for stronger grip and durability than basic plastic chucks.

Is this a good choice for everyday service work?

Yes. Its smaller size and lower weight make it a strong option for electricians, HVAC techs, installers, and general punch-list work.

Does it support ONE-KEY tracking?

No. The 3404-20 does not have ONE-KEY connectivity.